﻿using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace Skynet.BusinessEntities
{
    public partial class ExamCategory
    {
        partial void OnIdChanging(Guid value)
        {
            if (Guid.Empty == value)
                throw new ArgumentException("guid value is nor allow"); 
        }

    }
}
